package com.shen.util;

/**
 * Author:shen
 * CreateDate:2020/4/26.
 * Function:随机数
 */
public class RandomNumber {
    /**
     * 生成4数字
     * @return
     */
    public int getRandomNum(){
        return (int) (Math.random()*(999-1)+999);
    }
}
